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* config/tc-alpha.c (s_alpha_usepv): New.

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(md_pseudo_table): Add it.
        (alpha_cfi_frame_initial_instructions): New.
        * config/tc-alpha.h (TARGET_USE_CFIPOP): New.
        (tc_cfi_frame_initial_instructions): New.
        * doc/c-alpha.texi: Document .usepv.

        * gas/alpha/elf-usepv-1.[sd]: New.
        * gas/alpha/elf-usepv-2.[sd]: New.
        * gas/alpha/alpha.exp: Run them.
        * gas/cfi/cfi-alpha-3.[sd]: New.
        * gas/cfi/cfi.exp: Run it.
This commit is contained in:
Richard Henderson
2003-06-05 03:27:03 +00:00
parent 8efca6bae5
commit f4b97536ed
13 changed files with 185 additions and 0 deletions
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12
gas/doc/c-alpha.texi
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@ -379,6 +379,18 @@ to perform a load of the GP register; 2 indicates that @code{$27} is
used in some non-standard way and so the linker cannot elide the load of
the procedure vector during relaxation.
@item .usepv @var{function}, @var{which}
Used to indicate the use of the @code{$27} register, similar to
@code{.prologue}, but without the other semantics of needing to
be inside an open @code{.ent}/@code{.end} block.
The @var{which} argument should be either @code{no}, indicating that
@code{$27} is not used, or @code{std}, indicating that the first two
instructions of the function perform a GP load.
One might use this directive instead of @code{.prologue} if you are
also using dwarf2 CFI directives.
@item .gprel32 @var{expression}
Computes the difference between the address in @var{expression} and the
GP for the current object file, and stores it in 4 bytes. In addition